What herbicide kills alligator weed?

glyphosate
The two most common herbicides listed for control of the weeds are aquatic glyphosate and 2, 4-D. These require a surfactant to help in adherence. The average mixture is 1 gallon to every 50 gallons of water.

How do I get rid of alligator weed in my pond?

Liquid glyphosate formulations have been effective on alligator weed above the water line, but ineffective on plants in the water. They are broad spectrum, systemic herbicides. Systemic herbicides are absorbed and move within the plant to the site of action.

What damage does alligator weed do?

Ecological damage. Alligatorweed disrupts water flow causing increased sedimentation, and it shades submersed plants and animals causing reduced oxygen levels beneath the mat (Quimby and Kay, 1976).

Is alligator weed illegal?

USDA, NRCS (2018) indicates that Alternanthera philoxeroides is listed as a Class C noxious weed in Alabama, a prohibited noxious weed in Arizona, a noxious weed in Arkansas, on the A list (noxious weeds) in California, a Class 1 prohibited aquatic plant in Florida, and invasive aquatic plant and plant pest in South …

How long does it take propeller herbicide to work?

7-14 days
Propeller is effective for controlling a broad range of floating, emergent, and submerged pond weeds. Use Propeller to get rid of tough weeds like watermeal and duckweed. Complete kill within 7-14 days.

What animals eats alligator weed?

Agasicles hygrophila is a species of leaf beetle known by the common name alligator weed flea beetle. It has been used successfully as an agent of biological pest control against the noxious aquatic plant known as alligator weed (Alternanthera philoxeroides).

Why is the alligator weed a problem?

Environmental impacts. Alligator weed disrupts the aquatic environment by blanketing the surface and impeding the penetration of light. Such blanketing can also impede gaseous exchange (sometimes leading to anaerobic conditions) which adversely affects aquatic flora and fauna.

Is alligator weed invasive?

Alligatorweed (Alternanthera philoxeroides) is a perennial plant native to South America. Typically, this invasive plant can be identified by its elliptical or lanceolate leaves with smooth margins arranged in opposite pairs along the shoots.

What is being done about alligator weed?

There are a couple options to control Alligator Weed. Systemic herbicides, such as Shoreline Defense®, will work to kill the root of the plant. Use Propeller™, a fast and selective herbicide that controls tough invasive and nuisance aquatic plants.

How do you use a herbicide propeller?

We recommend adding water to your tank sprayer first, then add the Propeller. Once the water and Propeller have been mixed gently shake the sprayer to allow for complete mixing. Mix only the amount of spray solution that can be applied the day of mixing. Apply Propeller within 12 hours of mixing.

How do you use a propeller?

SURFACE APPLICATION Surface Application Apply Propeller Herbicide as a broadcast spray at 6 to 12 ounces of formulated product per acre plus an adjuvant approved for use in aquatics. Treatments made after September may be less effective depending upon water temperatures and weed growth.

What is the best herbicide to kill alligator weed?

Our top herbicide recommendation labeled to effectively control Alligator Weed is Ecomazapyr 2 SL Aquatic Herbicide. Ecomazapyr 2 SL delivers broad-spectrum control, is easy to use, and is cost-effective.

What is alligator weed and why is it a problem?

Alligator weed is one of the greatest threats to waterways, wetlands, loodplains and irrigation systems in Australia. As a weed that can grow both on land and in water and can tolerate a range of control methods – herbicides in particular – alligator weed has serious impacts worldwide and in Australia.

Does liquid glyphosate work on alligator weed?

Liquid glyphosate formulations have been effective on alligator weed above the water line, but ineffective on plants in the water. They are broad spectrum, systemic herbicides. Systemic herbicides are absorbed and move within the plant to the site of action. Systemic herbicides tend to act more slowly than contact…

What is the best way to get rid of alligatorweed?

The best time to treat for alligatorweed is when water temperatures are 60 degrees Fahrenheit (15 C.). The two most common herbicides listed for control of the weeds are aquatic glyphosate and 2, 4-D. These require a surfactant to help in adherence.